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~ F.OTHGERBEP. JOHNSONBLYONS ~9~ 638 5262 P. 13 <br />JUN-18-1999 12~~- <br />.. • • <br />naheolite now with the intent W protect oil shale in the saline zone is unwa~aated patriailarly <br />since sohrzioa mixing of aahcolite stay actually sern to better prepare the oil dsale for tetardne <br />by nrhbliziag the vil shale mania. Also, BllVl, which is the agency charged with managing V.S. <br />owned ail shale tainerals in the AmesipL Soda lease area, must autonamouslp apptv~e naheolite <br />salutioa mining before operations could occur under the tes'ms of a reclamation permit issaed by <br />the Board. <br />Camaunt lK19: R7hy.ia only the upper aquifer of coacem to American Soda when the eotire <br />hydro-stra>Sgraphic iattrval should be of eonoetn and coasidetatioa7 <br />DMG Response: The gtvuad water cha~'*°^~*oa plan will inalode the entire <br />hydrosaaitigraphie segaoace. The gmuad Wars protection auasures to be employed are <br />predicated on complete rAntainmcnt of process solution, either in the mining oavities aria caseil <br />wells, surface piping, tangy. or lined ponds. Thus release of mice fluids ro any aquifer would be <br />a Qaasgtession of the practice based permit wttditiaa9 protective of ground water wad would <br />have to be mitigated. <br />Comment fi18: aV'bat if en tmdergrouad fault or fracture is iatrrseeted during drilling aadlor <br />during solution mining activities? <br />DMG Response: The tedataatioa permit application specif ~ that if fauhed or fraettsred nines <br />are eaeotmteaed in the drilling of a production well, and if geeophyaical logging indicates that the <br />farmatioa Would not be mineable and ao other messutes rosy be taken to put the well into <br />sneeessilrl productio4 the tgell avill be plugged wad nbaadoned. <br />Comment f/19: What will happen it the hypersafitx evaporation paads fail err flood? <br />DMG Respottae; The evaporation poach, ilbuilt, win be ]snvironmeatal protection Facilities. <br />They will be dea7gned for stability and dam safety, with appropriate safety futon wad <br />iatotparating as apgroptiaie inflow design flood freeboard. Their deaigll, conaunctian, and <br />eettifieatioa will be isgulamd by AMt3 as tuith any Aaviroomeatal Protection Paei]iry. <br />Cotemseat #14: The applicant's reclamation permit application, as written, tiolates the swaamy <br />tequirt;tnent of gathetiag baseline data bdote thn issuanco ale ttxlamation permit. Basdiae <br />data eaaaot be co]]etted enacarnatly with the developeaeae of the Applicant's project as is <br />aotliaed in the reclamation permit applieatioa. Both the drilling wad dcvelaFutuat of walla and <br />ffie weq eompletioa methodologies tnay cause ground wear contatoiaatioa <br />DMG Response: It is DMG's position that the reclamation permit for the Yankee GnJch Project <br />maybe issued wad that developtaent of atuface facilities and dtilliag of produerion wells may <br />proceed conctrrsently with the eollectioa of baseline gtnund water data <br />Ruler 3.1.7(3) specifies that permit conditions protective of groundwater be established foz <br />operations that have a artsvaable potential to adversely affect ground water quality. Such permit <br />conditions may be is the farm of numeric protection levels, ptaatiee-hayed permit conditions, or <br />EXHIBIT <br />7 ~ A <br />